diff --git a/Gemfile.lock b/Gemfile.lock
index 2a7aaaa..aa8da69 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -218,7 +218,7 @@ GEM
       railties (>= 5.0)
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)